<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/heima.jpg" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="lagout">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse?'64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu
        background-color="#333744"
        text-color="#fff"
        active-text-color="#ffd04b"
        :unique-opened="true"
        :collapse="isCollapse"
        :collapse-transition="false"
        :router="true"
        :default-active='activePath'>
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id"> 
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i class="el-icon-location"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>

            <!-- 二级菜单 -->
            <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
              <template slot="title">
              <!-- 图标 -->
              <i class="el-icon-location"></i>
              <!-- 文本 -->
              <span>{{subItem.authName}}</span>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <!-- //路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data(){
    return{
      //左侧菜单数据
      menulist:[],
      iconsObj:{

      },
      //是否折叠
      isCollapse:false,
      //被激活的连接地址
      activePath:''
    }
  },
  created(){
    this.getMenuList()
    this.activePath=window.sessionStorage.getItem('activePath')
  },
  methods:{
    lagout(){
        window.sessionStorage.clear();
        this.$router.push("/login");
    },
    //获取所有的菜单
    async getMenuList(){
      const{data:res}=await this.$http.get('menus')
      if(res.meta.status !== 200) return this.$message.error(res,meta,msg)
      this.menulist=res.data
    },
    //点击按钮切换菜单的折叠
    toggleCollapse(){
      this.isCollapse=!this.isCollapse
    },
    //保存连接的激活状态
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath=activePath
    }
  }
}
</script>
11
<style lang="less" scoped>
  .home-container {
    height: 100%;
  }
  .el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      span {
        margin-left: 15px;
      }
    }
  }
  .el-aside {
    background-color: #333744;
    .el-menu {
      border-right: 0;
    }
  }
  .el-main {
    background-color: #eaedf1;
  }
  .toggle-button {
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
  }
</style>>